Power diaphragm pump



Dec. 7,1926.. 1,609,813

.1. c. GORMAN v POWER DIAPHRAGM PUMP4 Filedreb, e. 192e 2 sheetshem 1 J.C. GORMAN ngc, 1, 192e. 1,609,813

POWER DIAPHRAGM PUMP Filed Feb. a. 1926 2 Sheets-Shea?l 2 Patented Dec.7, 1926.

PATENTA OFFICE.

.TAIVIIElS C. GORMAN, 0F MANSFELD, OHIO.

POWER DIAPHRAGM PUMP.

Application filed February This invention relates to pumps, and moreparticularly to power diaphragm pumps especially designed for pumpingmuddy water out of trenches, foundations7 bridge footings andexcavations and for general drainage purposes.

One objectV of the invention vis to provide a simple, efficient anddurable pump of the character referred to consisting o-f few parts whichare adapted to be easily assembled or taken apart and in which thesuction and discharge vvalves are easily accessible for cleaningpurposes or for removing and replacing the diaphragm and suction valve.

, Other object-s are to provide a diaphragm pump having a base portion,a spout and a iack all cast or formed in one piece, with a ledge at thebase of the jack on which the periphery of the diaphragm rests, togetherwith means for clamping the diaphragm down upon the ledge, including aclamping ring which is removably secured and held in place by means ofbolts inserted through radial projections on the clamping ring andradial extensions of the ledge of said main casting, conforming to theshape of the projections on the clamping ring so'that the diaphragm maybe removed' and replaced without dismantling the pump by simply removingthe bolts which secure said clamping ring tothe main casting andthe nutson the ends of two bolts which secure the valve seat of the dischargevalve to the diaphragm around a cent-ral discharge opening therein.

Another object is to provide a discharge valve having aball-and-socket-joint connec tion with the valve stem to insure aperfect seating` of the valve when the parts are not assembled inperfect alinement as when the axis of the valve stem or the socket inwhich it is guided in its up and down movements in the plungerconnecting rod is not exactly perpendicular to the'valve seat.

Another .object is to provide a suction;

valve which is yieldingly supported inoperable relation to an inclinedseat formed on the inlet end of the suction pipe coupling in such manneras to be easily accessible for renewal or repairs or for cleaning; thevalve being pressed toits seat by ay stent 8, 1926. Serial No. 86,890.

spring having one end seated against the ach of the valve and the otherend seated against a superposed abutment on the main casting.

The invention will first be hereinafter more particularly described,with reference to the accompanying drawings. which are to be taken as apart of this specification, and then pointed out in the claims at theend of the description. f

In said drawings, Fig. l is a plan view;

Fig. 2 is a vertical sectional longitudinal elevation of a powerdiaphragm pump embodying my invention; Y

Fig. 3 is a horizontal sectional view, taken on the line 3 3 of Fig. 2;

Fig.l4 is a fragmentary detail view of a broken away portion of thepump, taken on the line 4 4 of Fig. 3; and Y Fig. 5 is a fragmentarydetail view, taken on the line 5-5 of Fig. 3.' Y

Referring to said drawings, in which the same reference letters are usedto denote corresponding parts in different views` the pump shownresembles in general exterior appearance the pump for which I haveheretofore obtained Patent No. 1,447,074, but it differs therefrom verymaterially in im-A portant Yfeatures which will be hereinafter setforth. The letters A., .l and S denote, respectively, the base, the ackand the spout of my' improved pump, all in one piece, preferably asingle'casting upon which is mounted, in suitable bearings, acrank-shaft B which is geared to a counter-shaft C which carries at oneend a band wheel or Vpulley C1 for connection with a belt driven from apower engine or other driving means.

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tubular members f of a valve-seat castingr harlngf a central openingtherein around which is formed an upwardly extendingr annular portionf1, which forms a seat for a discharge valve F, when brought intovalveseating position. The lower ends of the bolts E and El are passedthrough the inner portion of the diaphragm H surrounding a centraldischarge opening therein andare screwed into interiorly threadedsockets in a plunger ringT or casting Gr, whilethe upper ends ot' saidbolts have nuts c and ev screwed thereon tor holding' the assembledparts together. Vfithin the axiai hereof the connee/iig' rod D issli'dabljv iitted'a valve stem l l'iavingil a bail-shaped lower "end z''and a stuling-'boxdke connection with the discharge valve, and a coiledor other suitable spring `K is placed on the valvesteni between theshitting-box and cross- 7 so rifiuto exert a yielding pressure on headlu the valve tending to force it `*to its seat, while permitting it toyield against counter pressure tending to raise the valve. The valve l"has a' facing ot' `flexiblei'naterial coi'isisting' preierablyoistandard sheet rubber packing; clamped between up'jier and lower members`or metal parts f2 and'f "which are secured together `by a fasteningbolt f4 screwed therein. Gn the free end ot the bolt is s'c'rewe'd alocl: nut /i for hold.

iii'g; the several parts in assembled relation. The metal partor valvebackingr f2 has a central hollow boss Tor 'hub-like projection f thereinwhich is interiorly threaded and a "nut ,tf revoiutuj t"tted on thevalve-stein l ovenyinm he ball 'a is screwed into said boss so as 'toprovide a ball-an'd-socliet-joint connection between the valve anty `thevalvestein `and provide means for holding pacing' 'inateriai around theball-sha Jed end oi the valreisem. `ly these means the faire will alwaysseat 'M tcurately, even though the axis ol" the bore in the cfmnectinprrod ruidinge; the valve 'stem is not exactlyV p'erpen dicula'r to thevalve-scat and although the valve-seat when bolted to the connectingrods E and El may not be iuiperi'ect alineinent with the val-`\'e,*aswould otherwise he nec ary to insure a perfect seating ot the valve. TheVballandsocli'et-joint vconnection automatically takes care of any ini:ialinement.` The base portion of the main castingA is casU or v"formedwith a water pas 'sage connecting the suction and discharge valves\"\"hieh 4are *placed therein, and 'the e vaive actuating 'mechanism i lou the superposed jack vwith the comic'ctnr rod 'd Spind'in'g tliroufflian `o"i'e`nin the ltop "thcrcot `and at the juncition oit the base andacl; there 'is formed 'a ledp-e1 :L on j which "isV seated the outeredge or 'peripheral portion of the diaphragm H, which is clampedbetwee'isad 'ledge and 'an overlying clamping ring M which is pre erablyconstructed in two substantially semicircular parts `mf and m? having`laterally projecting apertured lugs m2 and vuf, respectively, which areco-incident with outwardly extended portions or projections 7 Tu of; theledge L toprovide seats for the overlying claniping` ring projections,the latter being suitably apertured to register with apertures 4intheninderlying extensions ol the ledge to which the clamping ring issecured by set. `screws or bolts N inserted trom above through theregistering apertures iu said clamping ringand ledge; said bolts having`nuts` u screwed on their lower ends on the underside of said ledge forsecuring the partstogetheig' as more clearly shown in l `1i1- lot'thedrawn'pjs.' As shown, dia1netrically opposite 'apertuied lugs on thetwo members oi the clamping ring` are so arranged that the lugs on onepart will overlap and rest upon the corresponding lugs ol the 'otherpart'and the fastening bolts N at these two pointspass throligh the ovcrlapped J portions of the lugsvand through registering apertures in theunderlying ledge on the main casting. The overlapping' 'portions of thelugs m and in, oi' the clamping' ring', at the pointiwherethe two "partsof the ring are joined together, are ol' wedge-shaped form, as shown inFig. 5, so as not to weaken but `give the greatest strength possible atthis point. yThe water passage in the base portion ofthe main castingterminates `atene` end in a tubular boss or projection 0 to which issecured in any suitable manner ya reinova'ble cap-plate or cover o,preferably by means of bifurcated lugs 0l formed on theoutside'oic thecasting` and adapted to receive fastening bolts 0 which are rscrewedinto nuts fitted in 'suitaoie recesses in said lugs 'toiprevent rotationot' the nut. ylhe 'terminal ot' the water pas sage dianfetrica'l'lyopposite the closure 0 is in the lorm o'l a tubulin' projection l)`which has an end tlange p and an opening [Il in its top, overl whichlittcd a cover-plate R for closing said opening. A suc'tion pipecouplinfar 'if is bolted or otherwise secured to the llange y; of thetubular projection? tor the attachment thereto otailiose or suctionpipe. The 'suction coupling T has au oblique or inwardly Ninclin'edinner -end' portionY against.whichis seated a valve'U "which preferablyhas a metal back 'ua-nda rubber sheet facing al which is secured toablock V which in turn is secured on the upper side of the inner endotth'efsuction coupling- T 'by means `otf aset 'screw vLiso thatbjvremoving 'the cover R the valve U may be removed bysiinplyunserewinpr the set screw fr. On themetal backgfw otfthenvalveU istoi-med a boss' a2 against which isseated one end oa stout coiled orother suitable spring lV, `for "forcing the valve tov its lseat; theother end of the spring being seated in a i sa recess w on the undersideofthe main casting.

I thus provide a very simple and inexpensive suction valve constructionin which the valve is yieldingly pressed toward its seat by means of aspring which is supported between a boss on the back of the valve and asuperposed abutment on the main casting without other fasteningmeans.

Some of the advantages of a pump of the described construction overdiaphragm pumps as heretofore ordinarily constructed may be enumeratedas follows. AIt consists of comparatively few parts of simple designadapted to be easily assembled or taken apart, thus reducing the cost ofmanufacture and the time required in assembling and securing the severalparts together. Easy ccess to the interior of the pump is afforded bysimply removing the cover of the cleanout opening, and the diaphragm maybe removed and replaced without dismantling the pump or removing thejack or spout. Easy access is afforded tothe suction valve for cleaningor removing it to replace a worn or broken part. Increased strength andreduced cost of manufacture are attained by constructing the base, jaclrand spout in a single piece, and simplicity and strength are combined inthe general arrangement of parts.

The discharge valve, which isguided entirely by its upward projectingstem, gives a full, free, non-clogging discharge opening so essential tocontinuous uninterrupted operation of the pump, and this valve is springloaded to insure quick action. rlhe raised, rounded seat of this valvewill not permit particles to lodge on it and thereby prevent the valvefrom closing so as to destroy the suction. rlhe suction valve isalsospring loaded for quick action and its seat is in such obliqueposition that solids will not remain on it.

Having thus desrribed my invention, what l 'claim as new and desire tosecure by Letn ters Patent of the United States is: .Y

l. ln a diaphragm pump, a combined buse, jack and spout formed in onepiece with a ledge uniting the baseand jack; said base being hollow andof approximately square forni and having a. water passage therethrough.andsaid jack being bulged at the corners of the hase so as to form ftherein coincident with apertures in said ledge, a. clamping ringarranged to rest upon the periphery of a diaphragm resting.;Y on saidledge and having radially extending apertured projections coincidentwith said recesses, and fastening bolts in` suted through the aperturesin said projet: tions und ledge for clamping the periphery of thediaphragm between said ring and ledge.

2. rlhe combination7 in a diaphragm pump, of a combined base, jack andspell formed integrally with a ledge uniting t base and jack; said basebeing hollow and of approximately square form and having a. waterpassage therethrough and the vertical wall of the jack adjacent saidledge l. eing bulgcd outwardly so as to provide recesses on the innerside thereof at the corners of the base, a diaphragm fitted within anopening through the top of said base with its peripheral portion restingon said ledge and carrying a discharge valve controlling the outlet fromsaid passage, a clamping ring resting on said peripheral portion of saiddiaphragm and having radial projections coincident with and protrudinginto said recesses, and fastening bolts inserted through registeringapertures in said projections and ledge for clamping said diaphragmbetween said ring and ledge.

3. ln a diaphragm pump, a combined base, j aclr and spout formedintegrally with ledge uniting the base and jack; said base being hollowand having a water passage therethrough and provided at Yone side hereofwith an integral tubular projection having an inlet valve seatedtherein, a clamping rino' resting onY the periphery of a diaphragmresting on said ledge, bolts passing thro-ugh registering apertures insaid ring and ledge for clamping said diaphragm therebetween, and adischarge valve centrollinfii` the outlet from said, passage throughsaid diaphragm.

d. ln a diaphragm pump, Va combined base, j acl; and spout formed in asingle piece with a ledge uniting the base and jack; said base portionbeing hollow and having a water passage therethrough and an integraltubular projection atone side thereof .having an inwardly-openingsuction-valve seated theren and also having on its underside adjacent`said valve an integral inwardly inclined abutment, a coiled springhaving one Y end seated against said al'iutn'ient and its otl er ondseated against the back of said valve, a clamping ring resting on theperiphery ot a diaphragm resting on said ledge. bolts. passing throughregistering apertures in said ring and ledge for clamping saiddiajfihragm therebetween., and a discharge valve controlling the outletfrom said passage through said diaphragm,

5. rThe combination, in a pump, of a combined base, jacl; and spoutformed integr-all)7 with a ledge at the .junc- V tion of the base andjack; said base Abeing hollow and of approximately square form, and saidledge having outwardly extended projections at the four corners 'thereofVwhile the vertiral wall of the jaclrat the base thereof is bulgedoutwardly coincident with said projections, and a clamping ring composedof substantially semi-circular diaphragm Vahle parts each havingdizinieiicaly geheihj inftening belts inserted through posed oui'\\zud1yextending pirojeetifms* registering openings therein and in Saidcoincident with he projections on said ledge ledge. 10 :ind seatedthereon Within the recess formed n tesimontK/f whereof I MH); my signu-5 hythe bnl'ges; he projections on said ture.

damping ring having inclined surfaces fit ting: one upon the other andsecured to- JAMES C. GGRMAN.

